Excuse if this is obvious... I've been using SPAN when studying the effect of Logic's EQ's. SPAN responds to Logics Channel EQ ok but doesn't seem to respond so acutely to Logics Single Band, e.g. Low Pass where, if I cut the sub 100 Hz's, they're still bouncing away in SPAN. Is it that the slope used in Logic's Single Pass - maybe 6 or 12 poles?

There's an audible effect all right, it's working, but presumably it's not like there's a complete cut.